ANSI B16.5 कार्बन स्टील फ्लँज निर्माता, ASTM A05, ASTM A350, ASTM A694 F52, F56, F60, F65, F70, WN flanges, LWN flanges, SW flanges, थ्रेडेड flanges, blind flanges, la flanges, so flanges, संयुक्त flanges, plate flanges ff, rtj, tf face
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